Pinion-bracket for turn-tables



(No M bdel.)

J. B. ROEMHELD. PINION BRACKET FOR TURN TABLES.

No. 605,914. Patented June 21,1898.

NITED STATES PATENT FFICE;

PlN'lON-BRACKET FOR TU RN-TABLES.

SPECIFICATION forming part of LettersPatent N 0. 605,914, dated June 21,1898.

Application filed November '5, 1897. Serial No. 657,563. (No model) Toall whom it may concern.-

Be it known that I, J ULES E. ROEMHELD, of Chicago, in the county ofCook and State of Illinois, have inventedcertain new and usefulImprovements in Pinion-Brackets for Turn- Tables, of which the followingis a specification.

This invention relates to pinion-brackets for turn-tables, and has forits object to produce a simple strong device of this character, havingincreased durability at a less cost as compared with similar devices incommon use. Brackets of this description as ordinarily constructed areof a composite nature, being built up of separate parts connected byrivets or bolts, which under the strains of use tend to become loose,and as soon as they are sufficiently loosened to permit relativemovement of the component parts of the bracket usefulness of thestructure is impaired and quickly destroyed. Moreover, separate bracesare required for the purpose of holding in proper position and alinementthe free end of the bracket, which carries the bearing of thepinion-shaft, and in practice itis found that these braces cannot resistthe strains placed upon them, and become either fractured or detached,thus leaving the bearing insufficiently supported against lateralstrains. These disadvantages are obviated by the structure embodying thepresent invention, which to these ends consists in certain novelfeatures which will be hereinafter described and then spe cificallypointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation of a portion of aturn-table, having my improvement applied thereto. Fig. 2 is a sectionalview taken on the line 2 2 of Fig. 1, and Fig. 3 is a plan View of thebracket detached.

In the said drawings, in which I have shown my invention applied to theturn-table of a swing-bridge, represents the turn-table drum, carried bythe rollers 12 on the fixed track or way 11, the drum being providedwith the usual upper track or way 13, which rests on said rollers. Arepresents the rack, and 15 the pinion, mounted on the pinion-shaft 16.These parts are of course of any approved construction.

The pinion shaft 16 is mounted in two to which they are secured bybolts25.

brackets, an upper and a lower one, to the latter of which my presentinvention more particularlyrelates. This bracket isv cast of steel in asingle piece and comprises a webor body portion 17, which is V-shaped orof increasing width from its free end to its base, said web or bodyportion being preferably arranged in a position inclined to thehorizontal with its free end lower than the base. Ribs or projections 18radiate fromthe free end of the bracket, extending at varying angles tothe face, and in practice I prefer to locate the two innermost ribs onthe upper side of the web or body, the outermost ribs being located atthe lateral edges of the web in the shape of flanges. The intermediateribs are also located on the under side of the web. The number andlocation of the ribs may, however, be varied.

The free end of the bracket is provided with a bearing 19 for thepinion-shaft 16, the said bearing being preferably integral with thebracketand provided with the usual removable cap 20, although I mayprovide aseparate bearing, forming a suitable seat therefor in the freeend of the bracket.

The base of the bracket is provided with a horizontal flange or portion21, shaped to conform to the drum to which it is attached and securedthereto by means of vertical bolts 22,

which pass through the horizontal bottom flange 23 of the drum, andwhich may also pass through the track 13. Vertical lugs 24 extend upwardfrom the flange 21 of the bracket, said lugs being arranged alternatelywith the apertures for the vertical bolts 22 and bearing against theouter face of the drum, This arrangement of the lugs permitsthe use ofthe vertical bolts, which would otherwise be impracticable.

The upper bracket may be of any suitable construction.

By reason of the construction described the bracket may be firmlysecured to the drum of the turn-table and will effectually resist thestrains to which it will be subjected in use. All bolts and rivets inthe body of the bracket and separate braces being dispensed with thedisadvantage attendant upon their structural weakness and lack ofdurability are obviated,

while the bracket is of much simpler construction and may be produced ata much lower cost.

I claim I 1. As a new article of manufacture, an integral turn-tablepinion-bracket of cast-steel, comprising a downwardly-inclined web orbody portion which is V-shaped or of increasing width from its free end,which carries the bearing of the pinion-shaft, to its base, which isprovided with a horizontal flange whereby it may be secured to theturn-table, substantially as set forth.

2. As a new article of manufacture, an integral turn-tablepinion-bracket of cast-steel, comprising a downwardly-inclined Web orbody portion which is V-shaped or of increasing width from its free end,which carries the bearing of the pinion-shaft, to its base, which isprovided with a horizontal flange adapted tures and intermediatevertical projections,

substantially as and for the purposes set forth.

J ULES E. ROEMI'IELD.

Witnesses:

GEO. E. WALno, IRVINE MILLER.

